In a multiple regression all of the following are true regarding residuals except:
A)their sum always equals zero.
B)they are the differences between observed and predicted values of the response variable.
C)they may be used to detect multicollinearity.
D)they may be used to detect heteroscedasticity.

Question

Quizplus · Accepted Answer

Residuals can be used to detect multicollinearity and heteroscedasticity, but they do not necessarily indicate the presence of multicollinearity.

In a Multiple Regression All of the Following Are True